Spray gun



FIG. 1 is a perspective view of a spray gun showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective schematic view of a spray gun showing my design.

The broken line showing of the spray gun is for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a spray gun, as shown and described. 